V4 Vane operated flow switch by ashrafp

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									                                                 Series
                                                  V4                                     Vane Operated Flow Switch
                                                              Field Adjustable – Dependable Protection Against Flow
                                                              Variation or Stopping in Pipelines for Fluids, Gases and
                                                                                                                                                                                  ®

                                                                                                                                                                             ®




                                                                                                                                                         Certified Product
                                                              Flowing Solids
Flow




                                                                                                                                                         Australian
                                                                                                                                                          Standard

                                                  3-11/32
                                                  [84.93]      U.L. AND C.S.A. TYPE         SPECIFICATIONS
                                                     2-1/2     INCLUDES 16 GA.              Service: Gases or liquids compatible with wetted materials.
                                                     [63.5]    LEADS, 6 [152.4] LONG.
                                                               CENELEC VERSION
                                                                                            Wetted Materials:
                                                               INCLUDES TERMINAL                       Vane: 316 SS.
                                                               BLOCK.                                  Body: Brass or 316 SS standard.
                                 8                             EXPLOSION-PROOF                         Magnet Keeper: 430 SS standard, 316 SS optional.
                              [203.2]                          HOUSING WITH 3/4                        Options: Other materials also available, consult factory (e.g.
                                                               [19.05] CONDUIT
                                   6-3/4                       CONNECTION                              PVC, Hastelloy, Nickel, Monel, Titanium).
                                 [171.45]                                                   Temperature Limit: -4 to 275°F (-20 to 135°C) standard, MT high
                                                               SWITCH BODY OF SAE
                                      4-11/16                  72 BRASS OR 316SS            temperature option 400°F (205°C) [MT option not UL, CSA, ATEX, or SAA].
                                      [119.06]                 STAINLESS STEEL              Pressure Limit: Brass body 1000 psig (69 bar), 316 SS body 2000 psig
                                          1 [25.4]             1-1/2 NPT                    (138 bar), optional 5000 psig (345 bar) available with 316 SS body and
                                                               MAGNET KEEPER 430            SPDT switch only.
                                                               STAINLESS STEEL              Enclosure Rating: Weatherproof and Explosion-proof. Listed with UL and
                                                               VANE AND VANE BLOCK          CSA for Class I, Groups C and D; Class II, Groups E, F, and G.
                                                               316 STAINLESS STEEL
                                                                                            ATEX     0344 II 2 G EEx d IIB T6 -20°C≤Tamb≤75°C
                                                               FIVE LAYER VANE              EC-Type Certificate No.: KEMA 03ATEX 2383
                                                               DESIGNED FOR 1-1/2
                                                               [38.1] TO 8 [203.2]          SAA: Exd II C T6 (T amb=60°C). Zone I. Also FM approved.
                                                               PIPES. USABLE IN             Switch Type: SPDT snap switch standard, DPDT snap switch optional.
                                                               LARGER SIZES.                Electrical Rating: UL, FM, ATEX and SAA models 10A @ 125/250 VAC
                                                                                            (V~). CSA models: 5A @ 125/250 VAC (V~); 5A res., 3A ind. @ 30 VDC
                                                                                            (V ). MV option: 1A @125 VAC (V~); 1A res., .5A ind. @ 30 VDC (V ). MT
                                                                                            option: 5A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM,
                                                                                            ATEX or SAA].
                                                                                            Electrical Connections: UL and CSA models: 16 AWG, 6˝ (152 mm)
                                                                                            long. ATEX and SAA unit: Terminal block.
       Rugged and reliable the Series V4 Flotect® flow switch oper-                         Conduit Connection: 3/4˝ female NPT.
       ates automatically to protect equipment and pipeline systems against                 Process Connection: 1-1/2˝ male NPT.
       damage from reduction or loss of flow. The V4 is time tested being in-               Mounting Orientation: Within 5° of vertical for proper operation. Units for
       stalled in thousands of pipelines and processing plants around the                   horizontal installation (vertical pipe with up flow) available.
       world. A unique magnetically actuated switching design gives superi-                 Set Point Adjustment: For universal vane: five vane combinations.
       or performance. There are no bellows, springs, or seals to fail. Instead,            Weight: 4 lb 8 oz (1.9 kg).
       a free-swinging vane attracts a magnet within the solid metal switch                 Agency Approvals: UL, CSA, CE, FM, SAA, and ATEX.
       body, actuating a snap switch by means of a simple lever arm.

                                                                                            MODELS
       FEATURES
       • Leak proof body machined from bar stock                                                Model                                           Description
       • Choice of custom vane calibrated for your application, Model V4,                    V4-2-U                                    Brass body, universal vane
                                                                                             V4-SS-2-U                                 316SS* body, universal vane
         or field adjustable multilayer vane, Model V4-2-U (see set point                    V4                                        Brass body, custom vane
         chart)                                                                              V4-SS                                     316SS* body, custom vane
       • Weatherproof, designed to meet NEMA 4
       • Explosion-proof (listing included in specifications)                               *316SS body with 430SS magnet keeper. For 316SS magnet keeper, specify: add -316
       • Installs directly and easily into pipeline with a thredolet, tee, or
        flange (see application drawings)                                                   Options (add as a suffix to the model number):
       • Can be used in pipes 1-1/2˝ and up                                                 -D, DPDT contacts
       • Electrical assembly can be easily replaced without removing the                    -MV, Gold Plated Contacts, options for dry circuits
                                                                                            (see electrical rating in specification, no listings or approvals)
        unit from installation so that the process does not have to be shut
                                                                                            -MT, High Temperature, option rated 400° F (204° C)
        down
                                                                                            (see electrical rating in specifications, no listings or approvals
       • High pressure rating of 1000 psig (69 bar) with the brass body                     -TRI (increasing flow), -TRD (decreasing flow), Time Delay Relay,
         and 2000 psig (138 bar) with the 316 SS body                                       option with 2 SPDT contacts, adjustable from 0-1 to 0-31 minutes.
                                                                                            (no listings or approvals)
                                                                                            -316, 316 SS Magnet Keeper, option to replace standard 430 SS
       APPLICATIONS                                                                         -SAA, SAA listed construction
       • Protects pumps, motors and other equipment against low or no                       -V, Vertical Up Flow, option for upward flow in vertical pipe
        flow                                                                                -AT, ATEX listed construction
       • Controls sequential operation of pumps
       • Automatically starts auxiliary pumps and engines                                   Consult factory for price and availability of fittings for V4 installation. Thredolets, bushings, and
       • Stops liquid cooled engines, machines and processing when                          tees are available in a variety of sizes and materials.
         coolant flow is interrupted
       • Shuts down burner when air flow through heating coil fails                         For custom vane models, please supply factory with following infor-
       • Controls dampers according to flow                                                 mation: pipe size, flow direction (horizontal, up), mounting, pressure,
                                                                                            temperature, specific gravity, flow rates (maximum normal, actua-
                                                                                            tion/deactuation*), etc.
                                                                                            *When both values are supplied, note which is critical.




       199                           VISIT OUR WEBSITES:           www.dwyer-inst.com   •    www.dwyer-inst.co.uk              •     www.dwyer-inst.com.au
V4 Universal Vane Flow Charts
 Values shown in both charts are nominal. If normal flows exceed actuation rates by less than 10%, custom vanes are recommended.
 Figures are based on standard vertical installation in a 1-1/2" thredolet in a horizontal run of pipe.

                                                                APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR COLD WATER.
                                                                         UPPER FIGURES IN GPM. LOWER FIGURES IN LPM

    VANE




                                                                                                                                                                                                                     Flow
   LAYERS         1.5"PIPE        2"PIPE        3"PIPE           4"PIPE          6"PIPE            8"PIPE          10"PIPE         12"PIPE           14"PIPE           16"PIPE          18"PIPE          20"PIPE

                     7-3          15-8          45-22             95-40          210-120          375-175         600-300          900-450           1200-600          1400-800        2000-1000        2400-1200
      1          26.67-11.67     56.7-30       167-83.3          367-150         800-450         1417-667        2267-1133        3400-1700         4550-2267         5300-3033        7567-3783        9083-4550

                                   7-4           23-14            50-35           130-90          230-150          450-250         650-350           900-500           1200-650         1450-800        1800-1000
    1&2                          26.7-15       86.7-53.3         190-132         500-333          867-567         1700-950        2467-1317         3400-1900         4550-2467        5483-3033        6817-3783

                                                 11-7            27-19            80-60           160-115          300-180         450-275           600-350           750-450          1000-600         1200-700
   1,2,&3                                                                                                                                                                              3783-2267        4550-2650
                                               41.7-26.7        102-71.7         300-233          600-433         1133-683        1700-1033         2267-1317         2750-2083

  1,2,3,&4                                                        17-12           60-45            120-90         230-150           310-200          430-280           550-360          700-450          850-550
                                                                  65-45          233-167          450-333         867-567          1167-750         1633-1067         2083-1367        2650-1700        3217-2083

  1,2,3,4,&                                                                       40-30            80-65          135-100          200-140          290-200            360-250          460-325          575-400
      5                                                                          152-113          300-250         517-383          750-533          1100-750          1367-950         1733-1233        2183-1517

Actuation rates are based on cold water at a specific gravity of 1.0. For fluids of different specific gravity, actuation rates may be approximated by dividing the rate shown by the square root of the specific
gravity.


                                                             APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR AIR.
                                                                  UPPER FIGURES IN SCFM. LOWER FIGURES IN LPS

   VANE
  LAYERS          1.5"PIPE        2"PIPE          3"PIPE         4"PIPE              6"PIPE           8"PIPE         10"PIPE         12"PIPE          14"PIPE         16"PIPE           18"PIPE          20"PIPE

                   32-17          65-32          210-105         400-200             950-475        1550-850        2400-1300       3450-1900        4700-2600       6400-3500         8000-4400       10000-5500
     1              15-8          30-20          100-50          190-90              450-220         730-400         1100-600        1600-900        2200-1200       3000-1700         3800-2100       4700-2600

                                  23-13           120-70         195-140             550-375        1100-700        1850-1200       2700-1750        3400-2200       4800-3100         6000-3900       7400-4800
    1&2                            10-6            60-30          90-70              260-180         520-330         870-570         1300-800        1600-1000       2300-1500         2800-1800       3500-2300

                                                  60-48         135-100              375-265         725-500         1200-850       1850-1300        2600-1800       3350-2350         4300-3000       5300-3700
   1,2,&3                                                                                                                                                                                              2500-1700
                                                  30-20          60-50               180-130         340-240          570-400        870-610          1200-800       1600-1100         2000-1400

  1,2,3,&4                                                        65-50              260-200         500-400         875-700        1250-1000        1900-1500       2500-2000         3100-2500       3900-3100
                                                                  30-20               120-90         240-190         410-330         590-470          900-710         1200-900         1500-1200       1800-1500

  1,2,3,4,&                                                                          130-100         310-250         650-525         1000-800        1600-1250       2200-1750         2800-2250       3550-2850
      5                                                                               60-50          150-120         310-250          470-380         760-590         1040-830         1300-1100       1700-1300


Actuation rates are based on air at standard conditions. For gases at other pressures, temperatures, or specific gravities, consult factory for equivalent flow approximations.


                                             APPLICATION DRAWINGS
                                                 FOR FLOTECT®
                                             AUTOMATIC FLOW SWITCHES




    THREADED COVER IS
    EASILY REMOVED FOR                                         REQUIRED FLOW HOLDS
    ACCESS TO SWITCH                                           SWITCH OPEN WHEN FLOW
                                                               SLOWS, VANE DROPS,
    3/4” NPT FOR CONDUIT                                       ACTUATION SWITCH.
                                                               ALUMINUM ENCLOSURE
    11⁄2" THREDOLET                                            FOR ELECTRICAL
                                                               CONNECTIONS
    CUT 115⁄16" MIN.
    HOLE IN PIPE                                                SWITCH BODY MACHINED
                                                                FROM BAR OF BRASS OR
                                                                STAINLESS STEEL




              Thredolet Installation. May also be installed using tee,
              flange or coupling.




                  CALL TO ORDER:            U.S. Phone 219 879-8000              •     U.K. Phone (+44) (0)1494-461707                •      Asia Pacific Phone 61 2 4272-2055                                 200

								
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